Abstract

We investigate theoretically the benefits of using all-optical phase regeneration in a long-haul fiber optic link. We simulate numerically the bit-error rate of a WDM optical communication system over many fiber spans with periodic re-amplification and compare the results obtained with and without the use of a phase regenerator at half the transmission distance. Our results suggest that, depending on the modulation format, a significantly improved performance by up to 1.5 orders of magnitude can be achieved.

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